• KüçükMehtap PehlivanlarMPDepartment of Chest Diseases, Division Of Intensive Care Medicine, Faculty of Medicine, Karadeniz Technical University, Trabzon,Turkey., Ahmet Oğuzhan Küçük, Ayşegül Pehlivanlar, Sevil Ayaydın Mürtezaoğlu, Kadir Çoban, Gamze Kılıç, Olcay Ayçiçek, Funda Öztuna, Yılmaz Bülbül, and Tevfik Özlü.
• Department of Chest Diseases, Division Of Intensive Care Medicine, Faculty of Medicine, Karadeniz Technical University, Trabzon,Turkey.
• Turk J Med Sci. 2022 Feb 1; 52 (1): 394939-49.

BackgroundIn this study, the efficacy of an IL-6 antagonist, Tocilizumab, administered in the early period was studied in intensive care patients with COVID-19 pneumonia followed by hypoxic and systemic inflammation not receiving mechanical ventilation support.MethodsPatients with COVID-19 pneumonia who have signs of hypoxia and systemic inflammation and/or who have acute bilateral infiltrates on chest radiograph and who received tocilizumab treatment were compared with the patients who received standard medical therapy. Patients who were followed up with COVID-19 pneumonia and respiratory failure between March 2020 and March 2021 were retrospectively evaluated in the study. A 400 mg - 800 mg iv dose (depending on weight) of Tocilizumab was administered. The primary endpoint was determined as intensive care unit mortality.ResultsA total of 213 patients who were admitted with respiratory failure associated with COVID-19 to our third-level intensive care unit were evaluated. Of these patients, the study was conducted with 50 patients in the tocilizumab treatment group and 92 patients in the standard treatment group. During the intensive care period, 26 patients (28.3%) in the standard treatment group and 12 patients (24%) in the group receiving tocilizumab died. The adjusted hazard ratio for mortality in the tocilizumab group was 0.39 (95% confidence interval [CI], 0.186 to 0.808; p = 0.001 by log-rank test). During the intensive care period, 22 patients (24.8%) in the standart treatment group and 16 patients (32%) in the tocilizumab group were intubated. The adjusted hazard ratio for a primary outcome intubation in the tocilizumab group was 0.71 (95% confidence interval [CI], 0.355 to 1.424; p = 0.184 by log-rank test).

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